4) Marco Verratti (Paris Saint-Germain)
A highly promising youngster, Paris Saint-Germain’s creative midfield starlet is also known to be a long-time target of Carlo Ancelotti, who worked with him during his reign in charge of the Ligue 1 giants. The 21-year-old is also attracting interest from the likes of Arsenal and Manchester United, but may be unable to turn down the glamour and prestige of a move to the Bernabeu. PSG are also in need of player sales in the near future and could benefit from bringing in around £30m for the sale of Verratti in order to ensure they keep up with Financial Fair Play to make more signings next summer.